komatsu 730E SPECIFICATIONS

730E

MAXIMUM GVW

324322 kg 715,000 lb

GROSS HORSEPOWER

1491 kW 2,000 HP

ELECTRIC DRIVE TRUCK

Photo may include optional equipment.

730E

E LECTRIC D RIVE T RUCK

SPECIFICATIONS

ENGINE

Make and model. . . . . . . . . . . . . . . . . . . . . . . Komatsu SSA16V159

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diesel

Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Operating cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 stroke

*Rated brake power . . . . . . . . . . . 1491 kW 2,000 HP @ 1900 rpm

**Flywheel power . . . . . . . . . . . . . 1388 kW 1,860 HP @ 1900 rpm

Weight (wet). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5294 kg 11,670 lb

NOTE: This engine includes the Engine Monitor System

*Rated brake power is the output of the engine as installed in this machine, at governed rpm and with engine
manufacturer’s approved fuel setting. Accessor y losses included are water pump, fuel pump and oil pump.
**Flywheel power is the rated power at the engine flywheel minus the average accessory losses.
Accessories include fan and charging alternator. Rating(s) represent gross engine performance in
accordance with SAE J1349 conditions.

ELECTRIC DRIVE

AC/DC CURRENT

Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G.E. GTA-22

Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Statex III Fuelsaver

*Motorized wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G.E. 788

**Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26.825:1

Speed (maximum) . . . . . . . . . . . . . . . . . . . . 55.7 km/h 34.6 mph

*Wheel motor application depends upon gross vehicle weight, haul road grade, haul road length,
rolling resistance and other parameters. Komatsu and G.E. must analyze each job condition to
assure proper application.

**Optional ratios available.

TIRES AND RIMS

Rock service, tubeless, tires

*Standard tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37.00 R57

Standard five (5) piece rim

686 mm x 1488 mm x 152 mm 27'' x 57'' x 6'' patented Phase II
New Generation rim assembly with patented 152 mm 6'' double
forged flanges. Not interchangeable with other manufacturers’ rims
due to improved design for greater load support and longer fatigue
life. Rated at 827 kPa 120 psi cold inflation pressure.

Typical tire weight . . . . . . . . . . . . . . . . . . . . . . . . .18371 kg 40,500 lb

*Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc.

FRAME

Advanced technology, full butt-welded box-sectional
ladder-type frame with integral ROPS supports, integral
front bumper, rear tubular cross members, steel castings
at all critical stress transition zones, rugged continuous
horsecollar.

Plate material . . . . . . . . . . . . . . . . . . . . . . . . . 482.6 mPa 70,000 psi

tensile strength steel

Casting material . . . . . . . . . . . . . . . . . . . . . . . 620.5 mPa 90,000 psi

tensile strength steel

Rail width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 mm 11''

Rail depth (minimum) . . . . . . . . . . . . . . . . . . . . . . . . . . . 813 mm 32''

Top and bottom plate thickness. . . . . . . . . . . . . . . . . . . 32 mm 1.25''

Side plate thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 mm 0.75''

Drive axle mounting . . . . . . . . . . . . . . . . . . . . . . . . . . High-mount ball

and socket joint at front

Drive axle alignment. . . . . . . . . . . . . Swing link between frame and axle

BRAKING SYSTEM

Service brakes: all-hydraulic actuated

Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wheel speed disc.

Three calipers on a 1168 mm 46.0" O.D. disc.

Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual disc armature speed.

Two 635 mm 25" O.D. discs per side.

One caliper per disc.

Emergency brakes . . . . . . . . . . . . . . . . . . Automatically applied prior

to hydraulic system pressure dropping below level

required to meet secondary stopping requirements.

Wheel brake locks. . . . . . . . . . . . . . . . . . . . . . . . . . . Switch activated

Parking brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spring-applied,

hydraulically released, with speed application protection.

Electric dynamic retarder (max.) ...........................2759 kW 3,700 hp

Continuously rated blown grids. Two-speed overspeed retarding.
Extended range retarding. Reverse retarding.

BODY

All-welded steel flat floor body with horizontal bolsters and full canopy.
Eyebrow, rear wheel rock ejectors, body up cable and rubber mounts
on frame are standard. Pivot exhaust heating optional.

Bottom plate . . . . . . . . . . . . . 19 mm 0.75'' 1034 mPa 150,000 psi

tensile strength steel (two-piece)

Front sheet . . . . . . . . . . . . . . . 12 mm 0.47'' 690 mPa 100,000 psi

tensile strength steel

Side sheet . . . . . . . . . . . . . . . . 9 mm 0.35'' 690 mPa 100,000 psi

tensile strength steel

Struck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 m

3

101 yd

Standard SAE heaped 2:1 . . . . . . . . . . . . . . . . . . . 111 m3 145 yd

Standard Komatsu body weight . . . . . . . . . . . .25612 kg 56,464 lb

CAB

Advanced Operator Environment with integral 4-post ROPS/FOPS
structure (meets J1040 Apr88), adjustable air suspension seat with
lumbar support and arm rests, passenger seat, maximum R-value
insulation, tilt and telescoping steering wheel, electric windshield
wipers with washer, tinted safety glass, power windows, Komatsu
Payload Weighing System, 55,000 Btu/hr heater and defroster, 21,600
Btu/hr air conditioning (HFC - 134A refrigerant).

SUSPENSION

HYDRAIR®II

Variable rate hydro-pneumatic with integral rebound control.

Maximum front stroke . . . . . . . . . . . . . . . . . . . . . . . 335 mm 13.2''

Maximum rear stroke . . . . . . . . . . . . . . . . . . . . . . . 279 mm 11.0''

Maximum rear axle oscillation . . . . . . . . . . . . . . . . . . . . . . . ±9.75º

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COOLING SYSTEM

L&M radiator assembly with sight gauge. Deaeration-type
top tank. Dual pass cooling.

Radiator frontal area . . . . . . . . . . . . . . . . . . . . . . . . 4.33 m2 46.6 ft

SERVICE CAPACITIES

Cooling system . . . . . . . . . . . . . . . . . . . . . . . .409 L . . 108 U.S. gal

*Crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . .223 L . . . 59 U.S. gal

Hydraulic system . . . . . . . . . . . . . . . . . . . . . . .731 L . . 193 U.S. gal

Motor gear box . . . . . . . . . . . . . . . . . . . . . . . . .40 L . . 10.5 U.S. gal

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3217 L . . 850 U.S. gal

*Includes lube oil filters

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